factorise completely:2ax-4bx-ay-2by

Answer 1

2ax - 4bx - ay - 2by.
2x(a-2b) - y(a-2b).
(a-2b)(2x-y).

Answer 2

2ax-4bx-ay-2by
= (2ax-4bx) + (-ay-2by)
= (2*a*x-2*2*b*x) + (-1*a*y-1*2*b*y)
= 2x(a-2b) - y(a+2b)
=2x(a-2b) +y (a-2b)
= (a-2b) (2x+y)

Answer 3

Excellent